Comparative Pharmacology
Head-to-head clinical analysis: COLESEVELAM HYDROCHLORIDE versus FLAVORED COLESTID.
Peer-Reviewed Evidence
Head-to-head clinical analysis: COLESEVELAM HYDROCHLORIDE versus FLAVORED COLESTID.
COLESEVELAM HYDROCHLORIDE vs FLAVORED COLESTID
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Colesevelam hydrochloride is a bile acid sequestrant that binds bile acids in the intestine, forming an insoluble complex excreted in feces. This reduces enterohepatic circulation of bile acids, leading to increased conversion of cholesterol to bile acids in the liver and upregulation of LDL receptors, resulting in decreased serum LDL cholesterol. In diabetes, it improves glycemic control possibly by altering bile acid signaling via FXR and TGR5 receptors, affecting hepatic glucose production and incretin release.
Colestid (colestipol) is a bile acid sequestrant. It binds bile acids in the intestine, forming an insoluble complex that is excreted in feces. This reduces enterohepatic circulation of bile acids, leading to increased hepatic conversion of cholesterol to bile acids, thereby lowering serum low-density lipoprotein (LDL) cholesterol levels.
3.75 g orally once daily or divided as 1.875 g twice daily with meals and liquid; maximum 4.375 g/day.
5-30 grams orally daily, divided into 2-4 doses, starting at 5 grams once daily and increasing by 5 grams every 4-7 days as tolerated; taken with meals and mixed with at least 4-8 oz of liquid per dose.
None Documented
None Documented
Not applicable as colesevelam is not absorbed; it acts locally in the gastrointestinal tract.
Not applicable due to non-absorbable resin; systemic absorption is negligible. Terminal half-life not defined.
Colesevelam is not absorbed systemically; it is excreted unchanged in the feces via biliary elimination. No renal excretion occurs.
Primarily fecal as insoluble complex (90-95%); <5% renal as glucuronide conjugate; minimal biliary elimination.
Category A/B
Category C
Bile Acid Sequestrant
Bile Acid Sequestrant